B4J Question Workbook Password protection

jPOI library currently doesn't include such features. POI itself does support encryption: http://poi.apache.org/encryption.html

It looks like the encryption is file based, it takes a file and outputs an encrypted file.
It should be possible to call the example code with JavaObject.

Hi there, you can see this post here...

https://www.b4x.com/android/forum/t...te-and-protecting-workbooks-worksheets.75222/

I have also collected everything I have been able to pick up about jPOI from this forum and created a library for it (source code included), perhaps you can also find some other useful things..

https://www.b4x.com/android/forum/threads/mashpoi.91334/#content

Good luck.